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6 September, 08:32

A circular track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour. What is Elena's speed? Include the unit of measure

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  1. 6 September, 10:47
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    5 mph

    Step-by-step explanation:

    The relation between speed, distance, and time is ...

    speed = distance/time

    Filling in the given values, we find the speed to be ...

    speed = (1/4 mi) / (1/20 h) = (1/4) (20/1) mi/h = 5 mi/h

    Elena's speed is 5 miles per hour.
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